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/* $Id$ */
/*
* Copyright (C) 2006 Richard Braun
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
#ifndef _MTXHISTORY_H
#define _MTXHISTORY_H
#include <string>
#include <vector>
/**
* Object implementing history support.
*
* Mainly used for command line history.
*/
class MtxHistory
{
private:
/**
* Vector of strings handled.
*/
std::vector<std::string> strings;
/**
* Iterator pointing to the current string.
*/
std::vector<std::string>::iterator offset;
public:
/**
* Default constructor.
*/
MtxHistory();
/**
* Add a string at the end of the vector of strings.
*
* The offset is automatically set to this string.
*/
void addString(const std::string &string);
/**
* Return string at current offset.
*
* Return an empty string if offset points at the end of the vector.
*/
std::string getString() const;
/**
* Decrement offset.
*
* If offset is already set to the first string, nothing is done.
*/
void previousString();
/**
* Increment offset.
*
* If offset is already set to the end of the vector, nothing is done.
*/
void nextString();
};
#endif /* _MTXHISTORY_H */
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